How to insert a message and then maybe a jpeg on the blockchain?

[MiniMoonSoon]

to celebrate #happyepsteinday 2026?

I need a special software? knots does it ?

what's the command line ?

just a small message first... #happyepsteinday

not much in bytes so shouldn't cost much...  as used the new "blockchain" is ?

to test the p2p data storage of some...

[ABCbits]

I need a special software? knots does it ?

Bitcoin Knots doesn't even relay such TX default.

to test the p2p data storage of some...

I assume you want to try it on Bitcoin testnet blockchain/network. AFAIK the easiest way is to download UniSat wallet from https://testnet.unisat.io/. After that, get a bit of testnet coin from faucet and visit https://testnet.unisat.io/inscribe. Make sure to choose "Ordinals", then choose either "Files" or "Text".

P.S. I DO NOT recommend doing it on mainnet.

[MiniMoonSoon]

thanks for your reply

no, on the mainnet...

i have a 29.2 core?

ideally I would like to do it with the CLI or the bitcoinqt in direct blockchain access, no intermediary...

if possible...

P.S. I DO NOT recommend doing it on mainnet.

Why? they "updated" the core for this reason, no?  they said they are against "censorship" , so...

again, question : "How" ! not why.

as backup may be a website that offer this option for a moderate fee?

[Cookdata]

if possible...

Have you tried to use Electrum? https://bitcointalk.org/index.php?topic=5546304.msg65468584#msg65468584, the thread example is on testnet, but it is the same on the mainet but the new Electrum version has changed the syntax for OP_Return from v4.5

Code:

script(OP_RETURN deadbeef),0

Change the deadbeef to the hexadecimal form of your message, #happyepsteinday should give you 2368617070796570737465696e646179

You should have something like this:

Code:

bc1q......................................,0.001
script(OP_RETURN 2368617070796570737465696e646179),0

Your final form should look like this, but change the address to your address and then send, but I recommend you do this on testnet first

P.S. I DO NOT recommend doing it on mainnet.

Why? they "updated" the core for this reason, no?  they said they are against "censorship" , so...

again, question : "How" ! not why.

He is not against you using op_return on the mainet, but your chance of making a mistake is what he fears. Any input sent to Op_return is irreversible, that is why he recommends using testnet, but if you know much about it, there is absolutely nothing to worry about.

[promise444c5]

He is not against you using op_return on the Mainer, but your chance of making a mistake is what he fears. Any input sent to Op_return is irreversible, that is why he recommends using testnet, but if you know much about it, there is absolutely nothing to worry about.

Not that..or maybe not only that..
Why in tf does he need to put #happyepsteinday  on  blockchain? Why not just find a cloud calendar to do that ? Or just write it in his diaries..

If his aim is for testing then no one is stopping him from using a testnet as mentioned by ABCbits, no one will stop him from using Mainet either but the blockchain isn’t created for such. Cloud services provide as much as possible storage you want to use to keep all sorts of data.

Why? they "updated" the core for this reason, no?  they said they are against "censorship" , so...

Because it’s against censorship doesn’t mean it should be abused.

“Censorship” is obviously available everywhere because of people like you  

Or your aim is just to push “knot is better “ agenda again since your account just woke up and you’re posting this all of a sudden.